Billionaire financier Leon Black, co-founder of private equity giant Apollo Global Management, announced on Monday that he will step down as CEO of the firm after a company review unearthed more than $150 million in payments to now-deceased sex offender Jeffrey Epstein.

Black provided support for Epstein’s lavish lifestyle over a five-year period that ended in 2017 — long after Epstein pleaded guilty in Florida to a prostitution charge involving a teenage girl, the review found, according to The New York Times. That report noted that Black — who will step down by the end of July — viewed Epstein as a “confirmed bachelor with eclectic tastes.”

In August 2019, Epstein committed suicide while in federal custody in New York City. He faced charges of sex trafficking and conspiracy tied to allegations that he had sexually abused dozens of minor girls.

Black is hardly the only major business figure who knew Epstein. That group includes some of the private sector’s most prominent figures, among them former President Donald Trump and former Microsoft CEO Bill Gates. Here’s a list of some of the high-profile business people with ties to Epstein:

Donald Trump

The friendship between Trump and Epstein began in the 1980s and lasted nearly two decades, over which they partied multiple times at Trump’s Mar-a-Lago Club in Palm Beach, Florida and at Epstein’s mansion on Manhattan’s Upper East Side, the Washington Post reported.

“I’ve known Jeff for fifteen years. Terrific guy,” Trump told New York Magazine in 2002. “It is even said that he likes beautiful women as much as I do, and many of them are on the younger side.”

The two had a falling out in 2004 over a Florida property dispute, the Washington Post found. After sex trafficking allegations were brought against Epstein, in 2019, Trump said he was “not a fan.” But Trump offered sympathy for Ghislaine Maxwell last July, soon after the longtime companion of Epstein was arrested for multiple charges related to Epstein’s alleged sex-trafficking.

“I just wish her well, frankly,” Trump said.

Bill Gates

Billionaire philanthropist Bill Gates met with Epstein on numerous occasions beginning in 2011 — years after Epstein was convicted of a sex crime, The New York Times reported. Gates visited Epstein at his Manhattan townhouse at least three times, one of which lasted well into the night, the Times found.

“His lifestyle is very different and kind of intriguing although it would not work for me,” Gates emailed coworkers in 2011, referring to Epstein, according to The Times. A spokeswoman for Gates, Bridgitt Arnold, told the Times that Gates had only been referring “to the unique décor of the Epstein residence — and Epstein’s habit of spontaneously bringing acquaintances in to meet Mr. Gates.”